9717714728 has 16 divisors (see below), whose sum is σ = 19012920480. Its totient is φ = 4647602608.

The previous prime is 9717714707. The next prime is 9717714779. The reversal of 9717714728 is 8274177179.

It is a super-2 number, since 2×9717714728² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9717714728.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26406650 + ... + 26407017.

It is an arithmetic number, because the mean of its divisors is an integer number (1188307530).

Almost surely, 2^9717714728 is an apocalyptic number.

It is an amenable number.

9717714728 is a deficient number, since it is larger than the sum of its proper divisors (9295205752).

9717714728 is a wasteful number, since it uses less digits than its factorization.

9717714728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52813696 (or 52813692 counting only the distinct ones).

The product of its digits is 1382976, while the sum is 53.

The square root of 9717714728 is about 98578.4699008866. The cubic root of 9717714728 is about 2133.9687171428.

The spelling of 9717714728 in words is "nine billion, seven hundred seventeen million, seven hundred fourteen thousand, seven hundred twenty-eight".